Printing-machine.



Patented Dec. l7, 190i.

w. H. DAWSON & J. STOTT.

PRINTING MACHINE.

(Apphcatwn fiked A111 10 1901 (No Model.) S'S'heets-Sheet l.

rm: Norms vs'rsns co; vuo'rdm'nm. WASHINGTONJP. c.

No. 689,066. I Patented mo. 17, mm. w. H. DAWSON &. J. sTnTT'.

PRINTING MACHINE.

(Application filed Apr. 10, 1901.)

(No Model.)

3 Sheets-Sheet 2.

"mE nunms PETERS 00., momurnm. wAsnmumn. h c.

I Patented D'ec. l7, l9l0l. W. H. DAWSON & J. STUTT PRINTING MACHINE.

(Application filed Apr. 10, 1901.)

3 Sheets-Shut 3.

(No Model.)

1k: "calls PETERS c0. PHOTO-L\THO.. WASHINGTON, n. c.

NlTED terns arena tries.

WILLIAM HENRY DAWSON AND JAMES STOTT, OF OTLEY, ENGLAND.

PRlNTlNG- -MACl-HNE.

'sPEoIFroATIoN forming part of Letters Patent No. 689,066, dated December 17, 1901.

Application filed April 10, 1901. Serial No 55,239. No model- To all whom it may concern:

Be it known that WG,WILLIAM HENRY DAW- SON and JAMEs STorr, subjects of the King of Great Britain and Ireland, residing at Otley,in the county of York, England, have invented a new and useful Improvement in Printing-Machines, of which the following is a specification.

This invention relates to printing machines; and it consists in the novel construction and combination of the parts hereinafter fully described and claimed.

In the drawings, Figure 1 is a partial section of the cylinder and the devices cooperating with it. Fig. 2 is an end View of the cylinder and the parts cooperating with it. Fig. 3 is a plan view of the same.

' A is an impression-cylinder, which is journaled in a frame 10.

D is the type-bed, which reciprocates in the frame 10 and is provided with a toothed rack G, which gears into a toothed wheel 13 on the cylinder, so that the said cylinder is oscillated as the bed is moved back and forth.

R is the feed-board for the sheets of paper.

S is the stop.

T is a pivoted switch.

P and Q are rolls for removing the printed sheets.

0 is a presser-roll carried by a shaft N.

E represents gripper-fingers secured on a shaft F, which is mounted in the cylinder.

K represents lifter-fingers secured on a shaft L and projecting over the shaft F. The shaft F is operated by means of a lever 8, having its middle portion secured on the shaft F at one end of the cylinder A.

G and I are rolls carried by the respective ends of the lever 3 on opposite sides of the shaft F. The shaft L is operated by a lever 4, which carries a roller M, said lever being secured on the said shaft adjacent to the lever 3.

H is a cam-bar pivoted at one end on a pin 11*, which projects from the frame 10. The other end of the cam-bar H has an operating arm or rod 1 pivoted to it. The cam-bar H is placed in the path of the roll G and operates to lower the gripper-fingers E.

J is a cam-bar pivoted on a pin projecting from the frame 10, and this cam-bar is provided with an arm 2 for operating it. The cam-bar J is arranged in the paths of the rolls I and M, and it raises the gripper-fingers E and the lifter-fingers K.

All the above-mentioned parts are operated by any approved driving mechanisms. These parts all operate in the usual mannerr The sheet of paper slides down the feed-board R against the stop S, and its edge is seized by the gripper-fingers E. The sheet is carried around the cylinder and is printed upon in the usual manner. After making a little more than a full revolution the front edge of the sheet is run over the point of the switch T, the said switch being depressed at the proper moment and the gripper-fingers E and the lifter-fingers K raised at the same time. The sheet slides over the switch T and passes between the rolls P and Q and is. carried away.

In order to increase the capacity of the machine, a second shaft F is mounted in the cylinder parallel with the shaft F. The shaft F has gripper-fingers E secured on it and projecting in the opposite direction from the gripper-fingers E.

L is a shaft mounted in the cylinder adjacent to the shaft L, and K are lifter-fingers which are secured on the shaft L and which project over the shaft F.

R is a feed-board arranged on the opposite side of the cylinder-shaft from the feed-board R and provided with a separate stop S.

T is a pivoted switch arranged on the opposite side of the cylinder from the switch T and provided with rolls P and Q for removing the printed sheets.

0 is a presser'roll carried by a shaft N, similar to the roll 0 and shaft N, but arranged under the switch T.

The shaft F is provided with an operatinglever 3 at the opposite end of the cylinder from the lever 3, and the shaft L is provided in a similar manner with an operating-lever 4: The levers 3 and l are provided with rolls G, 1, and M, the same as the levers 3 and at, and these levers are operated by means of cam-bars exactly the same as hereinbefore described with reference to the levers 3 and 4.

The two sets of mechanisms operate alternately, and the sheets are taken from the feed-boards R and R alternately, according to the direction of the motion of the cylinder.

What we claim is The combination, with an oscillatory impression-cylinder, of shafts F and F provided with gripper-fingers and mounted in the cylinder, shafts L and L provided with lifterfingers and also mounted in the cylinder, an operating-lever 3 having its middle part secured to the shaft F at one end of the cylinder and provided with a roller at each end, a

lever 4 secured to the shaft L adjacent to the lever 3 and provided with a single roller, an operating-lever 3 having its middle part secured to the shaft F at the other end of the 

